Inground transmitter with roll orientation pattern based frequency change

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United States of America Patent

PATENT NO 9915747
SERIAL NO

15359762

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Abstract

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A transmitter for use in an inground tool transmits a locating signal for tracking an underground position of the inground tool. The locating signal is characterized by a transmission frequency which changes responsive to detecting a roll orientation pattern in which the transmitter is held stationary for a predetermined period of time.

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Patent Owner(s)

Patent OwnerAddress
MERLIN TECHNOLOGY INC19625 62ND AVE SOUTH STE B-103 KENT WA 98032

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brune, Guenter W Bellevue, US 113 1727
Mercer, John E Gig Harbor, US 276 4847

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